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Questions tagged [rdfs]

RDF Schema is a set of classes using the RDF extensible knowledge representation language, providing basic elements for the description of ontologies, otherwise called RDF vocabularies, intended to structure RDF resources.

RDF Schema (variously abbreviated as RDFS, RDF(S), RDF-S or RDF/S) is a set of classes with certain properties using the RDF extensible knowledge representation language, providing basic elements for the description of ontologies, otherwise called RDF vocabularies, intended to structure RDF resources. These resources can be saved in a triplestore to reach them with the query language SPARQL.

Resources

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Is an rdfs:Literal "x" an rdfs:Resource of rdf:value "x"?

The W3C Recommendation RDF 1.1 Semantics states that if an RDF graph S contains ex:xxx ex:aaa "sss"^^ex:ddd . for ex:ddd in D, then S entails, recognizing D, ex:xxx ex:aaa _:nnn . _:nnn rdf:type ex:ddd . Given RDFS entailment patterns. Can we also…
Jordan
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Composition vs Inheritance in the Semantic Web

A lot of what rdfs provides has an analog in Object Oriented Programming (OOP). For example, rdfs:subClassOf roughly corresponds to the OOP concept of a subclass. In OOP, the mantra of prefer composition over inheritance is popular. In the semantic…
James Hudson
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How to transform RDFS to RDFS?

I have two RDF schemas and I need to convert one to another. Is there any transformation language analogue to XSLT just for RDFS? I'm looking for a possible implementation in .NET, but other platforms are welcomed as well.
dragan.stepanovic
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Are schema:domainIncludes and rdfs:domain (as well as schema:rangeIncludes and rdfs:range) the same?

Schema.org both defines and uses the predicates named domainIncludes and rangeIncludes to relate types to properties (i.e. and ). However in RDF…
Ben Werner
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RDF Schema for org-mode

I would like to create an RDF schema world for org-mode. As you may know, an org-mode document is based on an hierarchical outline where headings are the main grouping entities. * March auxiliary :PROPERTIES: :HLEVEL: 1 :END: ** :TOGRO: json/rdf…
147pm
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Domain and range of an RDF property for subclasses instead of instances?

Is there some way to state in RDF/RDFs, that any resource that has a given property is a subclass of a specific class? (or the other case with the object not the subject) rdfs:domain (respectively range) is close to that but the definition of domain…
Konrad Höffner
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RDF Class vs Property

I'm new to RDF and am having trouble wrapping my head around the distinction between a regular vanilla class, and explicitly declaring its rdf:type as rdf:property. Everything I can find suggests the main reason revolves around enabling domain and…
Xedni
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Why No Property Type Propagation with rdfs:subPropertyOf?

Suppose I have :hasParent rdfs:subPropertyOf :hasAncestor . :hasAncestor rdf:type owl:TransitiveProperty . This has the satisfying result of inferring all true ancestor relationships given the parentage. But I'm surprised it doesn't have the…
Wassadamo
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The relationships between RDF, RDFS, and OWL

Basically, I know that RDF, RDFS, and OWL are used to define the ontologies in order to address the semantics problem in world wide web. However, these terms make me a bit confused when studying them. This is my conclusion regarding their…
Uvuvwevwevwe
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GraphDB's Visual graph does not display all triples

In my graph I have the following assertions @prefix : . @prefix foaf: . @prefix rdf: . :joesmith a foaf:Person ; …
floatingpurr
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Can a Blank Node have rdf:type property?

Is it valid to form the following triple: _:bn rdf:type foaf:name where _:bn is a blank node? I read the W3C standards for rdf:type. It says that the rdfs:domain of rdf:type is rdfs:resource. rdfs:resource is the the class of everything. So is it…
Anmol Kagrecha
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Define mutiple domains/ranges in a same propery in OWL

What's the correct way to set domains/ranges of data/object properties in OWL? If I have two classes A, B and a data property hasName:
MiP
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DELETE QUERY SPARQL FUSEKI

How can I delete all triples statement for a given uri? My graph contains: PREFIX mo: PREFIX term: PREFIX xsd: …
DevJava
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SPARQL all predicate-object pairs of subject and all its superclasses

Imagine you do something crazy and store your object-oriented model as an RDF graph. shows a simplified example of the inheritance hierarchy and the associated attributes. In practice, you get such graph structure if you translate some UML class…
Smartgrid
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RDFS, RDF missing vocabularies

There are many examples for rdfs which use the following namespace @prefix rdf: . here is an example from w3c
Eng. Samer T
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